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Diffstat (limited to '')
| -rw-r--r-- | magic/Magdir/nifty | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/magic/Magdir/nifty b/magic/Magdir/nifty new file mode 100644 index 0000000..151d869 --- /dev/null +++ b/magic/Magdir/nifty @@ -0,0 +1,202 @@ + +#------------------------------------------------------------------------------ +# $File: nifty,v 1.1 2022/02/14 16:51:15 christos Exp $ +# file(1) magic for the NIfTI file format + +# Type: NIfTI, Neuroimaging file format +# URL: https://nifti.nimh.nih.gov/ +# From: Yann Leprince <yann.leprince@cea.fr>, 2022 + +344 string n+1\0 NIfTI-1 neuroimaging data, +!:mime image/x.nifti +!:ext nii +>0 use nifti1 +344 string ni1\0 NIfTI-1 neuroimaging data header, +!:mime image/x.nifti +!:ext hdr +>0 use nifti1 + +4 string n+2\0\r\n\032\n NIfTI-2 neuroimaging data, +!:mime image/x.nifti +!:ext nii +>0 use nifti2 +4 string ni2\0\r\n\032\n NIfTI-2 neuroimaging data header, +!:mime image/x.nifti +!:ext hdr +>0 use nifti2 + +# Main subroutine for NIfTI-1 +0 name nifti1 +>0 clear x +>0 lelong =348 little endian +>>70 use nifti-datatype-le +>>112 lefloat !0 with scaling +>>0 use nifti1-dim-le +>>252 leshort >0 \b, with qform +>>>252 use xform-code-nifti1-le +>>254 leshort >0 \b, with sform +>>>254 use xform-code-nifti1-le +>>136 string >\0 \b, description: %s +>0 belong =348 big endian +>>70 use \^nifti-datatype-le +>>112 befloat !0 with scaling +>>0 use \^nifti1-dim-le +>>252 beshort >0 \b, with qform +>>>252 use \^xform-code-nifti1-le +>>254 beshort >0 \b, with sform +>>>254 use \^xform-code-nifti1-le +>>136 string >\0 \b, description: %s +>0 default x +>>0 long x invalid sizeof_hdr=%d + +# Main subroutine for NIfTI-2 +0 name nifti2 +>0 clear x +>0 lelong =540 little endian +>>12 use nifti-datatype-le +>>176 lefloat !0 with scaling +>>0 use nifti2-dim-le +>>344 lelong >0 \b, with qform +>>>344 use xform-code-nifti2-le +>>348 lelong >0 \b, with sform +>>>348 use xform-code-nifti2-le +>>240 string >\0 \b, description: %s +>0 belong =540 big endian +>>12 use \^nifti-datatype-le +>>176 befloat !0 with scaling +>>0 use \^nifti2-dim-le +>>344 lelong >0 \b, with qform +>>>344 use \^xform-code-nifti2-le +>>348 lelong >0 \b, with sform +>>>348 use \^xform-code-nifti2-le +>>240 string >\0 \b, description: %s +>0 default x +>>0 long x invalid sizeof_hdr=%d + + +# Other subroutines for details of NIfTI files + +0 name nifti-datatype-le +>0 clear x +>0 leshort =1 \b, binary datatype +>0 leshort =2 \b, uint8 datatype +>0 leshort =4 \b, int16 datatype +>0 leshort =8 \b, int32 datatype +>0 leshort =16 \b, float32 datatype +>0 leshort =32 \b, complex64 datatype +>0 leshort =64 \b, float64 datatype +>0 leshort =128 \b, RGB24 datatype +>0 leshort =256 \b, int8 datatype +>0 leshort =512 \b, uint16 datatype +>0 leshort =768 \b, uint32 datatype +>0 leshort =1024 \b, int64 datatype +>0 leshort =1280 \b, uint64 datatype +>0 leshort =1536 \b, float128 datatype +>0 leshort =1792 \b, complex128 datatype +>0 leshort =2048 \b, complex256 datatype +>0 leshort =2304 \b, RGBA32 datatype +>0 default x +>>0 leshort x \b, unknown datatype 0x%x +>>2 leshort x (%d bits/pixel) + +0 name nifti1-dim-le +>0 clear x +>40 leshort <0 \b, INVALID dim[0]=%d +>40 leshort >7 \b, INVALID dim[0]=%d +>0 default x +>>40 leshort x \b, %d-dimensional (size +>>42 leshort x %d +>>40 leshort >1 +>>>44 leshort x \bx%d +>>40 leshort >2 +>>>46 leshort x \bx%d +>>40 leshort >3 +>>>48 leshort x \bx%d +>>40 leshort >4 +>>>50 leshort x \bx%d +>>40 leshort >5 +>>>52 leshort x \bx%d +>>40 leshort >6 +>>>54 leshort x \bx%d +>>80 lefloat x \b, voxel size %f +>>40 leshort >1 +>>>84 lefloat x x %f +>>40 leshort >2 +>>>88 lefloat x x %f +>>123 use nifti1-xyz-unit +>>40 leshort >3 +>>>92 lefloat x x %f +>>>123 use nifti1-t-unit +>>40 leshort x \b) + +0 name nifti2-dim-le +>0 clear x +>16 lequad <0 \b, INVALID dim[0]=%lld +>16 lequad >7 \b, INVALID dim[0]=%lld +>0 default x +>>16 lequad x \b, %lld-dimensional (size +>>24 lequad x %lld +>>16 lequad >1 +>>>32 lequad x \bx%lld +>>16 lequad >2 +>>>40 lequad x \bx%lld +>>16 lequad >3 +>>>48 lequad x \bx%lld +>>16 lequad >4 +>>>56 lequad x \bx%lld +>>16 lequad >5 +>>>64 lequad x \bx%lld +>>16 lequad >6 +>>>72 lequad x \bx%lld, +>>112 ledouble x \b, voxel size %f +>>16 lequad >1 +>>>120 ledouble x x %f +>>16 lequad >2 +>>>128 ledouble x x %f +>>500 use nifti2-xyz-unit +>>16 lequad >3 +>>>136 ledouble x x %f +>>>500 use nifti2-t-unit +>>16 lequad x \b) + +0 name xform-code-nifti1-le +>0 leshort =1 to scanner-based coordinates +>0 leshort =2 to aligned coordinates +>0 leshort =3 to Talairach coordinates +>0 leshort =4 to MNI152 coordinates +>0 leshort =5 to template coordinates + +0 name xform-code-nifti2-le +>0 lelong =1 to scanner-based coordinates +>0 lelong =2 to aligned coordinates +>0 lelong =3 to Talairach coordinates +>0 lelong =4 to MNI152 coordinates +>0 lelong =5 to template coordinates + +0 name nifti1-xyz-unit +>0 byte &0x01 +>>0 byte ^0x02 m +>>0 byte &0x02 micron +>0 byte ^0x01 +>>0 byte &0x02 mm + +0 name nifti1-t-unit +>0 byte &0x08 +>>0 byte ^0x10 s +>>0 byte &0x10 ms +>0 byte ^0x08 +>>0 byte &0x10 microsecond + +0 name nifti2-xyz-unit +>0 lelong &0x01 +>>0 lelong ^0x02 m +>>0 lelong &0x02 micron +>0 lelong ^0x01 +>>0 lelong &0x02 mm + +0 name nifti2-t-unit +>0 lelong &0x08 +>>0 lelong ^0x10 s +>>0 lelong &0x10 ms +>0 lelong ^0x08 +>>0 lelong &0x10 microsecond |